Groundwater Vulnerability Mapping Project GIS coverage maps and reports are available for each county. Please run the Autorun.exe in each county's zip file to access all data except the maps. To access map data, please download the shapefiles separately and import them into ArcMap.

Pesticide Monitoring ProgramWyoming's Pesticide Monitoring Program is a cooperative monitoring effort between the Wyoming Dept. of Agriculture and the US Geologic Survey (USGS). Since 1995, the U.S. Geological Survey, in cooperation with the Wyoming Department of Agriculture, has been sampling groundwater in Wyoming. Sampling of surface water for pesticides began in 2006.

Groundwater and surface water data, maps, and reports, including fact sheets are available for each county.